Powershell incorrect parameter - powershell

Question

So I am trying to pass the file directory to the function convert at the bottom. When I run the script I receive the output:
Succes
C:\test 2\00000027627-00001\PROCESSING CHECKLIST
convert : Invalid Parameter - 2\00000027627-00001\PROCESSING
At C:\Users\pmanca\Desktop\msbxmlreader.ps1:35 char:13
+ convert([string]$hostdirectoryPlusLoanPlusDocType)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (Invalid Paramet...0001\PROCESSING:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
It appears to be cutting off the file path after C:\test. Could the file path be too long? even so i wouldn't imagine getting the error at the function call and instead somewhere in the function when it couldn't resolve the path.
#? is a shortcut for where object and % is a shortcut for foreach-object
cls
#count 1 = Loan Number
#count 4 = Cust Num
#count 5 = Document Type
$hostdirectory = "C:\test 2"
$count = 0
$file = (Select-xml -Path "$hostdirectory\index.xml" -XPath / ).Node
$test = $file.ExportedResult.Docs.ExportedDoc.Doc.UdiValues.UdiValue.Value# | Select-Object {$_.UdiValue.Value.InnerXML} -Unique #|? {$_.UdiValue.Name -eq "Loan Number"}
$test | ForEach-Object{
$count++
# Write-Host $_.innerxml "----" $count
if($count -eq 1){
[string]$xmlHold = $_.InnerXML
$hostdirectoryPlusLoan = "$hostdirectory\$xmlHold"
if(!(test-path $hostdirectoryPlusLoan)){
New-Item $hostdirectoryPlusLoan -ItemType directory
}
}
if($count -eq 5){
[string]$xmlHold = $_.InnerXML
$hostdirectoryPlusLoanPlusDocType = "$hostdirectoryPlusLoan\$xmlHold"
if(!(test-path $hostdirectoryPlusLoanPlusDocType)){
New-Item $hostdirectoryPlusLoanPlusDocType -ItemType directory
}
if(Test-Path "$hostdirectory\$xmlhold.pdf"){
$check = Copy-Item "$hostdirectory\$xmlHold.pdf" -Destination $hostdirectoryPlusLoanPlusDocType -ErrorAction SilentlyContinue
if(-not $?) {write-warning "Copy Failed"; Write-Host $Error[0].exception.message}
else {write-host "Succes"}
Write-Host $hostdirectoryPlusLoanPlusDocType
convert([string]$hostdirectoryPlusLoanPlusDocType)
}
}
if($count -ge 8){
$count = 0
# Write-Host "-----------------------------------"
}
}
function convert([string]$inputDirectory){
write-host $inputDirectory
#Variable to hold current input directory
$InputPathFilter = $InputDirectory + '\*.pdf'
#Variable to hold the list of PDFs from the current input directory
$PDFList = #(gci $InputPathFilter | foreach {write-output $_.name})
#Loop through list of PDF files to convert to TIF image files.
for ($j=0; $j -lt $PDFList.count; $j++) {
#Each PDF will go into its own directory/batch
#Create a variable with only the file name
$FileName = $PDFList[$j] -replace(".pdf",'')
#Variable of the full path to the current PDF
$InputPath = $InputDirectory + '\' + $PDFList[$j]
#Variable to hold output path of each TIF file. Filename format is that used by batches in ScerIS (i.e. 00010001.tif, 00010002.tif, etc...)
$OutputFullDirectory = $inputlDirectory + '\' + $FileName + "_" + "{0:D4}" -f + '1' + '%04d.tif'
#Calls Ghostscript command line executable to process each PDF file into a group of single page TIF image files
&'C:\Program Files\gs\gs9.14\bin\gswin64c.exe' -sDEVICE=tiffg4 -dBATCH -dNOPAUSE -q -r600 "-sOutputFile=$OutputFullDirectory" "$InputPath"
#Increment the counter for the loop
$DocCounter = $j + 1
#Rename the current pdf so that it isn't processed again.
$RenamePath = $PdfList[$j] -replace("pdf", "pd_")
Rename-Item $InputPath $RenamePath -Force
}
}

Answer 1

First : In PowerShell, when you call a function you must not use parenthesis :
convert $hostdirectoryPlusLoanPlusDocType
or as suggested in comment
convert -inputDirectory $hostdirectoryPlusLoanPlusDocType
but not :
convert([string]$hostdirectoryPlusLoanPlusDocType)
Second : Your function should be declarated first and use after :
function toto ($var)
{
Write-Host $var
}
toto "voila"
and not
toto "voila"
function toto ($var)
{
Write-Host $var
}